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PURPOSE: The purpose of this paper is to report on changes in overall survival, progression-free survival, and complete cytoreduction rates in the 5-year period after the implementation of a multidisciplinary surgical team (MDT). METHODS: Two cohorts were used. Cohort A was a retrospectively collated cohort from 2006 to 2015. Cohort B was a prospectively collated cohort of patients from January 2017 to September 2021. RESULTS: This study included 146 patients in cohort A (2006-2015) and 174 patients in cohort B (2017-2021) with FIGO stage III/IV ovarian cancer. Median follow-up in cohort A was 60 months and 48 months in cohort B. The rate of primary cytoreductive surgery increased from 38% (55/146) in cohort A to 46.5% (81/174) in cohort B. Complete macroscopic resection increased from 58.9% (86/146) in cohort A to 78.7% (137/174) in cohort B (p < 0.001). At 3 years, 75% (109/144) patients had disease progression in cohort A compared with 48.8% (85/174) in cohort B (log-rank, p < 0.001). Also at 3 years, 64.5% (93/144) of patients had died in cohort A compared with 24% (42/174) of cohort B (log-rank, p < 0.001). Cox multivariate analysis demonstrated that MDT input, residual disease, and age were independent predictors of overall (hazard ratio [HR] 0.29, 95% confidence interval [CI] 0.203-0.437, p < 0.001) and progression-free survival (HR 0.31, 95% CI 0.21-0.43, p < 0.001). Major morbidity remained stable throughout both study periods (2006-2021). CONCLUSIONS: Our data demonstrate that the implementation of multidisciplinary-team, intraoperative approach allowed for a change in surgical philosophy and has resulted in a significant improvement in overall survival, progression-free survival, and complete resection rates.
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Neoplasias Ovarianas , Humanos , Feminino , Neoplasias Ovarianas/patologia , Estudos Retrospectivos , Carcinoma Epitelial do Ovário/cirurgia , Modelos de Riscos Proporcionais , Análise Multivariada , Procedimentos Cirúrgicos de Citorredução/métodos , Estadiamento de NeoplasiasRESUMO
Symptomatic HIV-associated neurocognitive disorder (HAND) is a complication of HIV (cognitive impairment, difficulties with everyday functioning). If detected early, interventions assist with optimizing care, avoiding rapid decline and enhancing coping. There remains inconsistency surrounding screening/diagnosis information within Australian healthcare professionals and community settings. A scoping review of academic literature, government policies and non-government organisations (NGOs) was conducted to map existing screening/diagnosis information using the guidelines of Joanna Briggs Institute. A literature search of EBSCOhost and Medline (dates: 2015-2021), the Australian government NGO web domains, Google and unpublished academic works was conducted (July 2021) and updated (December 2022) to identify Australian items (past 5 years). Seventeen items met the inclusion criteria. No government guidelines were identified. Various HIV-related organisations proposed different diagnostic guidelines. Most HAND research originated in Sydney. The most accessible information was from Dementia Australia, with some inaccuracies noted. There is scant Australian research/information on HAND screening/diagnosis. HAND translational research and screening/diagnosis standards are urgently needed to inform best practices. The Australian context is used to discuss international implications regarding higher-income countries with similar patterns/healthcare.
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Infecções por HIV , Programas de Rastreamento , Humanos , Austrália , Programas de Rastreamento/métodos , Infecções por HIV/diagnóstico , Infecções por HIV/complicações , Infecções por HIV/psicologia , Complexo AIDS Demência/diagnóstico , Transtornos Neurocognitivos/diagnóstico , Disfunção Cognitiva/diagnósticoRESUMO
BACKGROUND: Maternal health outcomes in the United States raises concern due to elevated rates of pregnancy-related deaths compared to other developed and underdeveloped countries. This scoping review explores relationships between social determinants of health (SDOH), postpartum visit attendance, and pregnancy-related deaths. METHODS: Utilizing the Arksey and O'Malley framework and PRISMA-Scr guidelines, a systematic review was conducted to identify pertinent literature. RESULTS: Eight studies were analyzed, providing insights into SDOH, postpartum visits, and pregnancy-related deaths. The findings highlight healthcare access/quality, economic stability, education, and social/community context as influential in postpartum care utilization. Health insurance emerges a key factor for postpartum attendance. In addition, disparities in geographic access to maternity care services were linked to pregnancy-related deaths. Social contextual factors, such as marital status and social support, exhibited varying associations with postpartum visit attendance. CONCLUSION: While the analyzed studies provided valuable insight, there remains a gap in the literature examining all three key elements: SDOH, postpartum visit attendance, and pregnancy-related deaths. In conclusion, this scoping review highlights the vital role of addressing social determinants in improving maternal health outcomes. Further research is necessary to better inform interventions to reduce pregnancy-related deaths.
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Mortalidade Materna , Cuidado Pós-Natal , Determinantes Sociais da Saúde , Humanos , Feminino , Gravidez , Estados Unidos , Acessibilidade aos Serviços de Saúde , Serviços de Saúde Materna , Adulto , Período Pós-PartoRESUMO
BACKGROUND: Restricting the advertisement of products with high fat, salt, and sugar (HFSS) content has been recommended as a policy tool to improve diet and tackle obesity, but the impact on HFSS purchasing is unknown. This study aimed to evaluate the impact of HFSS advertising restrictions, implemented across the London (UK) transport network in February 2019, on HFSS purchases. METHODS AND FINDINGS: Over 5 million take-home food and drink purchases were recorded by 1,970 households (London [intervention], n = 977; North of England [control], n = 993) randomly selected from the Kantar Fast Moving Consumer Goods panel. The intervention and control samples were similar in household characteristics but had small differences in main food shopper sex, socioeconomic position, and body mass index. Using a controlled interrupted time series design, we estimated average weekly household purchases of energy and nutrients from HFSS products in the post-intervention period (44 weeks) compared to a counterfactual constructed from the control and pre-intervention (36 weeks) series. Energy purchased from HFSS products was 6.7% (1,001.0 kcal, 95% CI 456.0 to 1,546.0) lower among intervention households compared to the counterfactual. Relative reductions in purchases of fat (57.9 g, 95% CI 22.1 to 93.7), saturated fat (26.4 g, 95% CI 12.4 to 40.4), and sugar (80.7 g, 95% CI 41.4 to 120.1) from HFSS products were also observed. Energy from chocolate and confectionery purchases was 19.4% (317.9 kcal, 95% CI 200.0 to 435.8) lower among intervention households than for the counterfactual, with corresponding relative reductions in fat (13.1 g, 95% CI 7.5 to 18.8), saturated fat (8.7 g, 95% CI 5.7 to 11.7), sugar (41.4 g, 95% CI 27.4 to 55.4), and salt (0.2 g, 95% CI 0.1 to 0.2) purchased from chocolate and confectionery. Relative reductions are in the context of secular increases in HFSS purchases in both the intervention and control areas, so the policy was associated with attenuated growth of HFSS purchases rather than absolute reduction in HFSS purchases. Study limitations include the lack of out-of-home purchases in our analyses and not being able to assess the sustainability of observed changes beyond 44 weeks. CONCLUSIONS: This study finds an association between the implementation of restrictions on outdoor HFSS advertising and relative reductions in energy, sugar, and fat purchased from HFSS products. These findings provide support for policies that restrict HFSS advertising as a tool to reduce purchases of HFSS products.
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Publicidade/economia , Bebidas/economia , Comportamento do Consumidor/economia , Gorduras na Dieta/economia , Açúcares da Dieta/economia , Análise de Séries Temporais Interrompida/métodos , Cloreto de Sódio na Dieta/economia , Adulto , Publicidade/legislação & jurisprudência , Idoso , Bebidas/legislação & jurisprudência , Dieta Hiperlipídica/economia , Economia/legislação & jurisprudência , Feminino , Humanos , Londres , Masculino , Pessoa de Meia-Idade , Açúcares/economiaRESUMO
The "Train Your Brain" (TYB) cognitive intervention group program was developed based on previous research with the goal of remediating cognitive impairments for elderly Singaporean people with mild cognitive impairment (MCI). This study reports a pilot evaluation of feasibility (defined as participant attendance, retention rate, satisfaction and usefulness) and preliminary efficacy of the TYB program. Nineteen participants with MCI aged ≥ 50 years were recruited from a memory clinic in Singapore, with 14 receiving the TYB intervention. Participants were allocated in order of recruitment into consecutive identical groups for a 9-session program on brain health and cognitive training. Participants received pre- and post-intervention measures of cognition and completed feedback forms reporting on satisfaction with, and utility of, the TYB program. TYB was well attended (85% attendance for the first 6 sessions; 83% for the full 9-session TYB program). Participant satisfaction was high, with positive participant feedback reporting that TYB offered useful cognitive strategies which participants could implement in their daily life. Despite the small sample size and absence of control group, repeated-measures t-tests revealed significant pre- to post-intervention intra-individual improvement in global cognition measured by the Montreal Cognitive Assessment, and in executive function on the Brixton Spatial Anticipation Test. This pilot study provides supportive preliminary evidence for feasibility of TYB, with suggestions of efficacy of this program as a culturally and linguistically appropriate intervention for English-speaking older adults with MCI in Singapore.
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Disfunção Cognitiva , Idoso , Encéfalo , Cognição , Disfunção Cognitiva/terapia , Estudos de Viabilidade , Humanos , Projetos Piloto , SingapuraRESUMO
OBJECTIVES: To investigate whether HE4 and CA125 could identify endometrioid adenocarcinoma patients who might most benefit from full staging surgery with lymphadenectomy. METHODS: Sequential patients with a preoperative banked serum and histology of endometrioid adenocarcinoma of endometrium who had undergone surgical staging with lymph node dissection over a 5-year period between 2011 and 2016 were included from a tertiary Gynaecological Cancer Centre, Dublin, Ireland. Preoperative serum HE4 and CA125 were measured using ELISA, with the cut-offs HE4 81 pmol/L and CA125 35 U/ml. Predictive values were estimated using AUC, sensitivity, specificity and odds ratios. RESULTS: 9.5% of the cohort had lymph node metastases. A HE4 cut-off of 81 pmol/L yielded a sensitivity of 78.6% and specificity of 53.4% for predicting lymph node metastases. Sensitivity of CA125 at 35 U/ml was 57% and specificity 91.4%. The AUC was 0.66 (0.52-0.80) for HE4 and 0.74 (0.58-0.91) for CA125. Sensitivity was 92.8% and specificity 51.1% when an elevation of either HE4 or CA125 was included, AUC was 0.72 (0.61-0.83), this combination yielded the highest NPV of 98.6%. Sensitivity was 42.9% and specificity 93.8% if both markers were elevated simultaneously, AUC was 0.68 (0.51-0.86). Preoperative clinical predictors of high-grade preoperative histology and radiology had sensitivities of 21.4% and 41.7%, respectively. Patients with a HE4 above 81 pmol/L had an odds ratio of 4.2 (1.12-15.74), p < 0.05, of lymph node metastases and CA125 had an odds ratio of 14.2 (4.16-48.31), p < 0.001. CONCLUSIONS: Serum HE4 and CA125 improved on existing methods for risk stratification of endometrioid carcinomas and warrant further investigation.
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Biomarcadores Tumorais/sangue , Antígeno Ca-125/sangue , Carcinoma Endometrioide/diagnóstico , Neoplasias do Endométrio/diagnóstico , Metástase Linfática/diagnóstico , Proteínas de Membrana/sangue , Proteína 2 do Domínio Central WAP de Quatro Dissulfetos/análise , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Endometrioide/sangue , Carcinoma Endometrioide/patologia , Carcinoma Endometrioide/cirurgia , Neoplasias do Endométrio/sangue , Neoplasias do Endométrio/patologia , Neoplasias do Endométrio/cirurgia , Endométrio/patologia , Endométrio/cirurgia , Feminino , Humanos , Histerectomia , Excisão de Linfonodo/estatística & dados numéricos , Linfonodos/patologia , Linfonodos/cirurgia , Metástase Linfática/patologia , Pessoa de Meia-Idade , Gradação de Tumores/estatística & dados numéricos , Estadiamento de Neoplasias/estatística & dados numéricos , Valor Preditivo dos Testes , Período Pré-Operatório , Curva ROC , Valores de Referência , Estudos Retrospectivos , Medição de Risco/métodos , Salpingo-OoforectomiaRESUMO
BACKGROUND: Internationally, the COVID-19 pandemic severely curtailed access to hospital facilities for those awaiting elective/semi-elective procedures. For allergic children in Ireland, already waiting up to 4 years for an elective oral food challenge (OFC), the restrictions signified indefinite delay. At the time of the initiative, there were approx 900 children on the Children's Health Ireland (CHI) waiting list. In July 2020, a project was facilitated by short-term (6 weeks) access to an empty COVID stepdown facility built, in a hotel conference centre, commandeered by the Health Service Executive (HSE), Ireland. The aim of this study was to achieve the rapid roll-out of an offsite OFC service, delivering high throughput of long waiting patients, while aligning with existing hospital policies and quality standards, international allergy guidelines and national social distancing standards. METHODS: The working group engaged key stakeholders to rapidly develop an offsite OFC facility. Consultant paediatric allergists, consultant paediatricians, trainees and allergy clinical nurse specialists were seconded from other duties. The facility was already equipped with hospital beds, bedside monitors (BP, pulse and oxygen saturation) and bedside oxygen. All medication and supplies had to be brought from the base hospital. Daily onsite consultant anaesthetic cover was resourced and a resuscitation room equipped. Standardized food challenge protocols were created. Access to the onsite hotel chef facilitated food preparation. A risk register was established. RESULTS: After 6 weeks of planning, the remote centre became operational on 7/9/2020, with the capacity of 27 OFC/day. 474 challenges were commenced: 465 (98%) were completed and 9 (2%) were inconclusive. 135 (29%) OFCs were positive, with 25 (5%) causing anaphylaxis. No child required advanced airway intervention. 8 children were transferred to the base hospital. The CHI allergy waiting list was reduced by almost 60% in only 24 days. CONCLUSIONS: Oral food challenges remain a vital tool in the care of allergic children, with their cost saving and quality-of-life benefits negatively affected by a delay in their delivery. This project has shown it is possible to have huge impacts on a waiting list efficiently, effectively and safely with good planning and staff buy-in-even in a pandemic. Adoption of new, flexible and efficient models of service delivery will be important for healthcare delivery in the post-COVID-19 era.
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COVID-19 , Pandemias , Alérgenos , Alergistas , Criança , Humanos , SARS-CoV-2RESUMO
A randomised, waitlist controlled, trial was conducted to evaluate the effects of the Adult Resilience Program (ARP), a universal prevention social-emotional programme for adolescents and adults, on self-reported depression, anxiety, stress, resilience, and self-esteem. Seventy-six students from a private university in Singapore were randomised to the ARP group or wait-list control (WLC) group and assessments were conducted at pre-intervention (T1), post-intervention (T2), and 6-month follow-up (T3). A 2 × 3 mixed between-within groups multivariate analysis of variance with the between-group factor of Group (ARP, WLC) and the within-group factor of time (T1, T2, and T3) and the dependent variables of depression, anxiety, stress, resilience and self-esteem, with age and stage of degree as covariates showed a significant decrease over time in depression (ηp2 = .20), and anxiety (ηp2 = .06). There was a significant decrease in stress for the ARP only from T1 to T2 (ηp2 = .16). While there was a significant interaction of Time and Group for resilience (ηp2 = .07), there was no significant change in resilience for the ARP group alone. The results provide preliminary support that the ARP can impart essential skills that can have a positive impact on mental health in university students.
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Serviços de Saúde Mental/normas , Medicina Preventiva/métodos , Resiliência Psicológica , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Adulto JovemRESUMO
If current trends in food insecurity continue then the diets of low-income people may become characterised by the inclusion of significant amounts of donated and surplus food accessed via the third-sector. These developments have yet to be integrated into macro models and concepts of the food environment. Addressing this caveat is necessary in order to both help build an evidence base to challenge policies that exacerbate the drivers of food insecurity and to inform interventions aimed at improving the diets of disadvantaged populations.
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Dieta , Assistência Alimentar , Abastecimento de Alimentos , Pobreza , Humanos , Populações VulneráveisRESUMO
OBJECTIVE: The aim of this study was to examine the clearance of serum human epididymis protein 4 (HE4) in the immediate postoperative period in patients undergoing maximal effort cytoreductive surgery for ovarian carcinoma. METHODS: The study was performed at a tertiary gynecologic oncology center. The surgery was performed by accredited gynecological oncologists. RESULTS: Preoperative and serial postoperative venous blood samples at 4, 8, 24, 48, 72, 96, and 120 hours were taken from 10 sequential patients. Pretreatment HE4 is considered elevated at greater than 70 pmol/L. Human epididymis protein 4 was greater than 70 pmol/L in 7 patients, including all patients with high-grade serous carcinoma. Patients with preoperative elevation of serum HE4 and complete cytoreduction cleared more than 80% of serum HE4 in the first 4 hours and more than 88% within 5 days of surgery. One patient with incomplete cytoreduction of high-grade serous carcinoma had 66% clearance at 4 hours and a plateau thereafter. CONCLUSIONS: Human epididymis protein 4 derived from ovarian carcinoma had a short half-life of less than 4 hours in the circulation when cytoreductive surgery was complete. Sustained low HE4 following surgery could be a useful indicator of the completeness of cytoreduction. Plateau or rise in serum HE4 could suggest persistent disease. Comparison of values on day 1 and day 4 or 5 might have value in assessing the completeness of cytoreduction.
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Carcinoma Epitelial do Ovário/sangue , Carcinoma Epitelial do Ovário/cirurgia , Proteínas/metabolismo , Adulto , Idoso , Biomarcadores Tumorais/sangue , Procedimentos Cirúrgicos de Citorredução , Feminino , Procedimentos Cirúrgicos em Ginecologia , Humanos , Pessoa de Meia-Idade , Proteína 2 do Domínio Central WAP de Quatro Dissulfetos , Adulto JovemRESUMO
BACKGROUND: Despite recent interest in community-based screening programs to detect undiagnosed cognitive disorder, little is known about whether screening leads to further diagnostic evaluation, or the effects of such programs in terms of actual changes in patient or caregiver behavior. This study followed up informants of older adults (i.e. caregivers of patients who completed informant-based screening regarding the patient) following participation in a study screening for undiagnosed memory problems, to explore uptake of further diagnostic evaluation or treatment, advance planning or preparations, lifestyle changes, medication adherence, and use of support services. METHODS: A total of 140 informants of older adult patients were surveyed four to fifteen months following participation in a cognitive screening study. The informants were interviewed with a study-specific survey about cognitive assessment, advance planning, lifestyle changes, and use of support services and general medication adherence. RESULTS: A minority of patients and informants had engaged in advance planning or made relevant lifestyle changes following cognitive screening. Those assessed as being at higher risk of memory problems were more likely to have attended a full diagnostic evaluation, engaged in support services and experienced medication adherence difficulties. CONCLUSION: Only a small proportion of patients participating in cognitive screening subsequently engaged in diagnostic evaluation, advance planning, or lifestyle changes. However, those with higher risk of cognitive impairment were generally more likely to take some action following cognitive screening. Those at higher risk were also more vulnerable due to greater difficulties with medication adherence.
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Planejamento Antecipado de Cuidados , Disfunção Cognitiva/diagnóstico , Adesão à Medicação/psicologia , Transtornos da Memória/diagnóstico , Idoso , Cuidadores , Cognição/fisiologia , Disfunção Cognitiva/psicologia , Feminino , Humanos , Estilo de Vida , Masculino , Transtornos da Memória/psicologia , Atenção Primária à Saúde , SingapuraRESUMO
The higher prevalence of fast food outlets in deprived areas has been associated with the production and maintenance of geographical inequalities in diet. In the UK one type of fast food outlet - the 'chicken shop' - has been the focus of intense public health and media interest. Despite ongoing concerns and initiatives around regulating these establishments, the 'chicken shop' is both a commercially successful and ubiquitous feature of disadvantaged urban neighbourhoods. However, little is known about how they are perceived by local residents. We report data from a qualitative study of neighbourhood perceptions in a low SES urban setting. Narrative family interviews, go-along interviews and school video focus group workshops with 66 residents of East London were conducted over two waves. The topic of chicken shops was a prolific theme and a narrative analysis of these accounts revealed that local perceptions of chicken shops are complex and contradictory. Chicken shops were depicted as both potentially damaging for the health of local residents and, at the same time, as valued community spaces. This contradiction was discursively addressed in narrative via a series of rhetorical rebuttals that negated their potential to damage health on the grounds of concepts such as trust, choice, balance, food hygiene and compensatory physical activity. In some instances, chicken shops were described as 'healthy' and patronising them constructed as part of a healthy lifestyle. Chicken shops are embedded in the social fabric of neighbourhoods. Successful strategies to improve diet therefore requires context-sensitive environmental interventions.
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Dieta/psicologia , Família/psicologia , Fast Foods , Comportamento Alimentar/psicologia , Populações Vulneráveis/psicologia , Adolescente , Adulto , Animais , Galinhas , Criança , Feminino , Grupos Focais , Geografia , Humanos , Londres , Masculino , Aves Domésticas , Pesquisa Qualitativa , Características de Residência/estatística & dados numéricos , Restaurantes , Instituições Acadêmicas , Fatores Socioeconômicos , Inquéritos e Questionários , População UrbanaRESUMO
Despite the increasing recognition of household food insecurity as a policy issue, there is currently no routine measurement of food insecurity in the UK. There is nothing to suggest that Government will address this in the near future for all parts of the UK. In which case, policy makers and campaigners might instead seek out consistent and robust measures of the population-level factors which are known to contribute to food insecurity. However, no systematic measures exist, meaning that resources may not be targeted at those areas most in need. This paper presents the first objective estimate of high population-level risk of household food insecurity in English neighbourhoods (4.09% of the population, 95%CI 4.08-4.10) using public data. Estimated geographic distribution of factors contributing to household food insecurity is customisable to local pressures and is adaptable to settings outside of England.
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The behaviour of adolescents is recognised increasingly as having substantial and long-term consequences for their health. We examined the meaning of 'adolescence' in southern Uganda with HIV-positive young people aged 11-24 years. Adolescent girls and boys are described differently in the local language (Luganda). Adolescence is described as a behavioural rather than a life course category and an inherently dangerous one. The practices, risks and consequences of 'adolescent' behaviour are highly gendered. Local understandings of adolescence are likely to have a significant impact on the efficacy of interventions designed to minimise their 'risky behaviour'.
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The gut microbiota of termites plays important roles in the symbiotic digestion of lignocellulose. However, the factors shaping the microbial community structure remain poorly understood. Because termites cannot be raised under axenic conditions, we established the closely related cockroach Shelfordella lateralis as a germ-free model to study microbial community assembly and host-microbe interactions. In this study, we determined the composition of the bacterial assemblages in cockroaches inoculated with the gut microbiota of termites and mice using pyrosequencing analysis of their 16S rRNA genes. Although the composition of the xenobiotic communities was influenced by the lineages present in the foreign inocula, their structure resembled that of conventional cockroaches. Bacterial taxa abundant in conventional cockroaches but rare in the foreign inocula, such as Dysgonomonas and Parabacteroides spp., were selectively enriched in the xenobiotic communities. Donor-specific taxa, such as endomicrobia or spirochete lineages restricted to the gut microbiota of termites, however, either were unable to colonize germ-free cockroaches or formed only small populations. The exposure of xenobiotic cockroaches to conventional adults restored their normal microbiota, which indicated that autochthonous lineages outcompete foreign ones. Our results provide experimental proof that the assembly of a complex gut microbiota in insects is deterministic.
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Baratas/microbiologia , Microbioma Gastrointestinal , Animais , Análise por Conglomerados , DNA Bacteriano/química , DNA Bacteriano/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Vida Livre de Germes , Isópteros , Camundongos , Dados de Sequência Molecular , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , SimbioseRESUMO
The gut microbiota of termites and cockroaches represents complex metabolic networks of many diverse microbial populations. The distinct microenvironmental conditions within the gut and possible interactions among the microorganisms make it essential to investigate how far the metabolic properties of pure cultures reflect their activities in their natural environment. We established the cockroach Shelfordella lateralis as a gnotobiotic model and inoculated germfree nymphs with two bacterial strains isolated from the guts of conventional cockroaches. Fluorescence microscopy revealed that both strains specifically colonized the germfree hindgut. In diassociated cockroaches, the facultatively anaerobic strain EbSL (a new species of Enterobacteriaceae) always outnumbered the obligately anaerobic strain FuSL (a close relative of Fusobacterium varium), irrespective of the sequence of inoculation, which showed that precolonization by facultatively anaerobic bacteria does not necessarily favor colonization by obligate anaerobes. Comparison of the fermentation products of the cultures formed in vitro with those accumulated in situ indicated that the gut environment strongly affected the metabolic activities of both strains. The pure cultures formed the typical products of mixed-acid or butyrate fermentation, whereas the guts of gnotobiotic cockroaches accumulated mostly lactate and acetate. Similar shifts toward more-oxidized products were observed when the pure cultures were exposed to oxygen, which corroborated the strong effects of oxygen on the metabolic fluxes previously observed in termite guts. Oxygen microsensor profiles of the guts of germfree, gnotobiotic, and conventional cockroaches indicated that both gut tissue and microbiota contribute to oxygen consumption and suggest that the oxygen status influences the colonization success.
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Baratas , Microbioma Gastrointestinal/efeitos dos fármacos , Trato Gastrointestinal/microbiologia , Vida Livre de Germes , Oxigênio , Aerobiose , Anaerobiose , Animais , Enterobacteriaceae/crescimento & desenvolvimento , Enterobacteriaceae/metabolismo , Fusobacterium/crescimento & desenvolvimento , Fusobacterium/metabolismoRESUMO
CONTEXT AND OBJECTIVE: Nonfunctioning pituitary adenomas (NFPAs) are the most common subtype of pituitary tumour. Hypopituitarism is observed in NFPAs due to tumour- or treatment-related factors and may increase mortality risk. Here, we analysed the associations of hypopituitarism, hormone replacement and mortality in a large NFPA cohort derived from two large European centres. DESIGN, SETTING AND PARTICIPANTS: Case note review of all patients treated for NFPA in University Hospitals Birmingham and Beaumont Hospital Dublin between 1999 and 2014 was performed. MAIN OUTCOME MEASURES: Clinical presentation, treatment strategies, pituitary function and vitality status were recorded in each patient. A multivariate Cox regression model was used to examine the association between hypopituitarism, hormone replacement and premature mortality. RESULTS: A total of 519 patients were included in the analysis. Median duration of follow-up was 7·0 years (0·5-43). A total of 81 deaths were recorded (15·6%). On multivariate analysis, adrenocorticotropic hormone (ACTH) and gonadotropin (Gn) deficiencies were associated with an increased relative risk of death (OR 2·26, 95% CI 1·15-4·47, P = 0·01 and OR 2·56, 95% CI 1·10-5·96, P = 0·01, respectively). Increased hydrocortisone (HC) (P-trend = 0·02) and lower levothyroxine (LT4) doses (P-trend = 0·03) were associated with increased risk of death. Mortality increased with the degree of pituitary failure observed (P-trend = 0·04). CONCLUSION: ACTH and gonadotropin-deficient patients have higher mortality rates compared to those with intact hormonal axes. Excessive HC and suboptimal LT4 replacement may also increase risk of death. Complex associations between hormone deficiency and replacement underpin the increased mortality risk in NFPA patients.
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Adenoma , Hormônio Adrenocorticotrópico/deficiência , Gonadotropinas/deficiência , Neoplasias Hipofisárias/mortalidade , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Europa (Continente) , Feminino , Seguimentos , Terapia de Reposição Hormonal , Humanos , Hidrocortisona/administração & dosagem , Hipopituitarismo , Masculino , Pessoa de Meia-Idade , Mortalidade , Prognóstico , Tiroxina/administração & dosagem , Adulto JovemRESUMO
BACKGROUND: Prospective memory refers to memory for future intentions and is a critical predictor of functional capacity in late adulthood. For many other cognitive abilities, self- and informant-rated methods of assessment are routinely used to guide clinical decision-making. However, little is known about the validity (and consequently the clinical utility) of subjective reports of prospective memory difficulties. OBJECTIVE: The aim of this study was to compare clinical [mild cognitive impairment (MCI), dementia] and nonclinical older adults (healthy controls) on self- and informant-rated versions of prospective and retrospective memory function, as well as objective measures of prospective memory. Critical here was not only the assessment of between-group differences, but also whether these different methods of assessing memory function would show appropriate convergent and discriminant validity. METHODS: A total of 138 participants aged between 64 and 92 years, diagnosed with dementia (n=37), MCI (n=48) or no impairment (n=53), were asked to complete self- and informant-rated versions of the Prospective and Retrospective Memory Questionnaire (PRMQ). Participants also completed behavioural measures of global cognitive function [the Mini-Mental State Examination (MMSE)], as well as a behavioural measure of prospective memory (Virtual Week). RESULTS: Self-reported impairments were equivalent across the three groups, and informant reports of impairment, while higher for those with dementia, did not distinguish MCI from controls. For the combined sample and for all three groups separately, both self- and informant reports of prospective memory showed poor convergent validity, at best correlating only weakly with Virtual Week. Self-reported prospective memory was correlated with informant report only in the dementia group, not in the control or MCI groups. Convergent and discriminant validity were poor, with self- and informant-rated prospective memory more strongly related to self- and informant-rated retrospective memory than to scores on Virtual Week. CONCLUSION: These data indicate that self-report and informant report may neither accurately measure prospective memory of older people, nor be sensitive to objective prospective memory difficulties in people with MCI and dementia. These data have potentially important implications for clinical practice.